Bitcoin is being fought by banks and governments because it threatens the dollar and the banking system.
The future they want is a global coin, not a decentralized currency.
https://www.theguardian.com/sustainable-business/2017/jul/10...
The fact that we aren't banning some things that we should (if we have an alternative) doesn't mean we shouldn't ban anything. To be clear, I'm all for banning climate change activities that we have an alternative for. Also for accelerating research into things for which we don't. Bitcoin can be regulated in order to limit the climate change effects, right now it's a huge tulip mania.
What's wrong with the dollar? Just because something is centralized doesn't mean it's bad.
If you were a normal person living in Iran (or any other country to which the US decides to apply arbitrary economic sanctions), you might feel rather different about this.
Proof of Work coins are being fought for governments because they committed to goals decided in Paris Agreement and PoW CCs are making it harder to achieve the goals. Swedes discuss banning Bitcoin, but not PoS coins or premined coins that do not have PoS or PoW